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what is the difference steps for data modeling?
Can we create Hierarchies in generic datasources?
What is partitioning? Explain about round-robin, hash partitioning.
What are the ETL Testing Operations?
1.Identify and discuss the problems which are occurred during data quality verification for the single-source and multi-source problems. 2.Testing has very important role in DWH. In ETL testing phase, how can we perform the integration testing and regression testing? 3.What are the perquisites of system testing and regression testing in ETL phase?
State the differences between shortcut and reusable transformation
what are the facilities provided by data warehouse to analytical users?
where we cannot use sorter Transformation. if we use then we will not get correct data?
What are the various tools used in etl?
What is a mapping, session, worklet, workflow, mapplet?
how do u really know that paging to disk is happening while u are using a lookup transform?
when will use SQL override in a lookup transformation?
how do u set partition points in the mapping?
How to delete data which is not in source table?
what is the use of server manager?
